Question

Alright, let me start with an example. I have a bunch of items and they can fall into series of categories. An item can be in multiple categories. Basically what I have is a listing of items with checkboxes grouped by category. Again an item can appear more than once. So it could look something like:

Blue Items:
Item 1
Item 2
Item 3

Red Items:
Item 1
Item 4

So next to each item there is a checkbox to delete the item-category association. What should I store in the value of the input so I can differentiate items between categories? I mean I can’t use the item number because it can appear in multiple categories. I could do something like “blue-item2” then when going through the form with my server side script split the value string with “-” but that seems a little iffy.

Sorry if the question is a little vague. I can clarify a little if need be.

Answer 1

A form containing these elements:

<input type="checkbox" name="item[blue][0]">
<input type="checkbox" name="item[blue][1]">
<input type="checkbox" name="item[blue][2]">

<input type="checkbox" name="item[red][0]">
<input type="checkbox" name="item[red][1]">

will result in the following value for the $_POST['item'] element:

array(
    'blue' => array(0, 1, 2),
    'red'  => array(0, 1),
);